Water-purifying apparatus



.w MT A mm EN JA .G Mm .Y Wm &D| .R H B .M 0

W d. d o M 0 m No. 434,666. Patented Aug. 19, 1890.

E Norms Parens cu., immo-Umb., wAsHxNsYoN u c UNITED STATES PATENTOEEICE.

OMAR H. JEVVELL AND VILLIAM M. JEVVELL, OF CHICAGO, ILLINOIS.

'WATER-P-URIFYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 434,666, dated. August19, 1890.

Application filed March 21, 1890.

To all whom it may concern.-

Be it known that we, OMAR H. JEWELL and WILLIAM M. JEWELL, citizens ofthe United. States of America, residing at Chicago, in the county ofCook and State of Illinois, have invented cert-ain new and usefulImprovements in Water-Purifying Apparatus, of which the following is aspecification, reference being had therein to the accompanying drawings.

This our invention relates to apparatus for purifying water, and moreparticularly to the class of such apparatus generally known asgravity-filters, and it has for its object to provide such a filter witha self-regulating feed from the pump by means of valves operated byoats, to arrange the same with an exterior endless trough withwaste-pipe and` valves for the wash-out water to be discharged; alsowith a vertically-reciprocating agitator for the filtering materialduring suoli washout, and, finally, with a chemical-tank so connectedwith the suction and feed pipe of the pump that a certain amount ofwater will be fed into the lower strata of chemicals to rise through thesame, and that the Asolution is drawn from above such chemicals into thesuction-pipe for thoroughly intermingling with the water before enteringthe filteringtank; and with these objects in view our invention consistsof the novel devices and combinations of devices hereinafter describedand specifically claimed.

In the accompanying drawings, Figure l represents a sectional elevationof the entire apparatus, and Figs. 2 and 3 a detail view and section ofthe valves for the chemicaltank.

Corresponding letters of reference in the several figures of thedrawings designate like parts.

A denotes the filtering-tank that is open on top, and B is the pumphaving suction-pipe C and discharge-pipe D, the latter being connectedwith pipe d, that communicates in the center of the top of the tank witha chamberhead E, having a series of outlets each' controlled by aswinging stop-valve F, having an arm with a float f to close suchoutlets whenever the water in the tank A reaches a certain level. Pipedis provided with a stopvalve G for regulating or shutting od the feedtoward chamber-head E. Through avalve H Serial No. 344,766. (No model.)

the pipe D also communicates with a pipe I, having valves .I and K, thevalve J providing communication with a pipe j,that leads to the sewer.The pipe I, by means of an elbow and branch extended through the centerof the bottom of tank A, also communicates with a chamber-head L,located near the bottom in such tank and having connected a series ofradial pipes M, each reaching to near the side wall of the tank A, whereit is closed by a cap, and each having attached a series ofstrainer-cups m, coveredwith wire screening. The pipe from head L willconduct the filtered water to the pure-water reservoir. Exteriorlyaround the filtering-tank A is fixed an endless trough N, communicatingwith a waste-pipe n, that also leads into the sewer, and a series ofopenings are cut through the side walls of such tank, each having aninterior valve-seat o, that will be closed by a swinging valve O,pivoted to a fulcrum-bracket p, and provided with a slotted arm engagingthe collared end of a screwstem P, tapped through a stuffing-box securedagainst the outside wall of tank A, such screwstem P having mounted uponit a hand-wheel for rotating such screw-stem P in one direction oranother for opening` or closing such valves.

Above the filtering material is secured iu tank A a diametrical beam Q,through the center of which and through a guide-piece q secured thereonis passeda vertical bar R, guided therein and reaching to near chamberL, which bar has secured to it a series of radial arms s, that extend tonear the side walls of tank A, and on top of this beam Q is iixed astandard-bearing g for a bellcrank S, one arm of which is pivotallyconnected with the upper eyed end of barR and its other arm by a rod tconnecting with a lever T, pivoted in a bracket secured against thewall-of the tank A, the rod t being projected through a stutting-boXalso secured to tank A. A swinging of lever T will verticallyreciprocate bar R and the radial arms s secured thereto for agitatingthe filtering material Whenever desirable.

The tank U is to contain either soda, lime, or alum, a solution of whichis to be intermixed with the water to be filtered for precipitatingcarbonate of lime or other matter contained therein, and into this tankis fed IOO water in proper quantities from the dischargepipe D of pump Bthrough a branch pipe u from pipeD extended over the top of tankU andthence to near the bottom thereof, where a check-valve o is coupledtherewith that will prevent the chemicals from entering and cloggingsuch pipe, and this pipe u is also provided with a valve w automaticallyopened or closed by a float :r to allow the filling of such tank only upto a certain level. From near the top of such tank a pipe g/ connectswith the snction-pipe C of pump B, which pipe y is provided with a valvez, regulating the proportional amount of the chemical solution to beintermixed with the water to be filtered. By this device theconcentrated solution will rise to the top, leaving all impurities thatmay be contained in the chemicals to remain in the bottom of tank U.

The modus operandi of the apparatusis as follows, to wit: The pumpBworking with a pressure about equal to draw and lift the water over thetop of tank A, so that the speed of the pump will be automaticallyregulated by valves F, controlled by iioats f, and when tank A is filledwith water to nearly its top the gravity of the head of water above thefiltering material will accelerate the filtering process. The water thusfed to the tank will have added a small percentage of chemical solutiondrawn from t-ank U, which solution will thoroughly inter-mix with thewater while passing through pump B.

For filtering, the valves G and K are opened `and the valves H, J, and Oare closed, when the water, after trickling through the filteringmaterial, will enter strainer-cups m, and from pipes M will collect inchamber-head L, and thence will pass off toward the purewater reservoirthrough pipe I. For washing out the impurities from the Water thusfiltered collecting in and upon the filtering material, the valve G isclosed and the water contained in the tank is allowed to filter untilempty, or nearly so, then the valve K is closed and the valves Il and Oare opened, when the water from the pump will be forced through pipe Iinto chamber-head L, and thence through branch pipes M and theStrainer-cups m, passing upward through the filtering material andthence escaping through the valve-seats o in to trough N, escaping fromthere int-o the sewer through pipe n, and carrying with it allimpurities, and for the purpose of facilitating and making more thoroughthe wash-out the operator during such wash-out, will swing the lever lto and fro for vertically reciprocating the bar H with its arms s,thereby agitating the filtering material, loosening and separatingtherefrom all impurities that had been settled therein. After thushaving washed out the tank by a counter-current with, commencing tofilter closed and the valve K is opened again. Vith the placing of thewash-out-water trough N eXteriorly of the tank-walls, any sedimenttherein of foul matter' can have no putrescent effect upon the Water tobe filtered, as may sometimes be where such trough is placed interiorlyofthe filtering-tank, and besides such trough is in lready reach forcleaning as often as required, and for agitating the filtering materialvertical reciprocating horizontal bars Working more like a ohurn-dasherwill accomplish the object more thoroughly than bars rotated oroscillated.

l. The combination, with gravitating filtering-tank A, of a trough N,placed exteriorly thereof, openings through the wall of the tank leadinginto such trough and each provided with a valve O, arranged to beoperated from the outside, and pipe n for discharging the contents ofthe trough N, all substantially as set forth.

2. The combination, with a filtering-tank, of vertically-reciprocatingbar R, guided in a cross-beam and provided with horizontal arms withinthe filtering material, and bellerank S, bar t, projected through astuffing lbox in the side wall of the tank, and lever 'l for operatingsuch bar R, substantially as set forth, for the purpose specified.

In testimony whereof we afhx our signatures in presence of twowitnesses.

OMAR H. J ElVELL. lVILLIAM M. JEVELL.

Witnesses:

WILLIAM H. LoTz, OTTO LUEBKERT.

lOO

